New video: "Is the Voynich Manuscript fake?"

[ReneZ]

With respect to the C14 dates: I suppose because I studied archeology a hundred years ago, I’ve never liked to rely on C14 dating except as a baseline. It needs to be supported and cross checked with other methods. That’s why I love what Koen has done with his video.

Of course, that was the whole point. Bring in as much usable evidence as possible. I'm from a scientific/engineering background myself, and familiar with the issues related to mixing observations of different nature, and with different precision and reliability. That is precisely what is happening here. The C-14 dating is the most reliable, but still has a range of several decades. Note that C-14 dating it is usually considerably less precise, and therefore much less reliable. The clothing works very well, but some people will find it hard to believe, especially if it goes against their own ideas. The opinion of an expert who can subjectively be argued to be in a good position adds to the whole, in my opinion, even as it necessarily has a lower weight.

And no, the Cosmos illustration of BNF Fr. 565 has no place in this. There is no link between the two manuscripts, and both illustrations might relate to a common source, but they are not so similar that they can be connected.
Much more would need to be found to say more about this.